Originally developed as a medication for severe pain, fentanyl now has a dark side: The highly potent substance is increasingly being abused as a recreational drug—sometimes with deadly consequences.

A Boston-based biopharmaceutical company is revolutionizing the weight-loss drug industry. Syntis Bio has created a daily ...

Human immunodeficiency virus or HIV is a virus that makes your immune system so weak that it becomes hard for it to fight off ...